CDL GENERAL KNOWLEDGE 1
(cristcdl.com)Questions and Correct
Answers (Latest Update 2025-2026)
Assured Success
Whenever you stop for a break during your trip, you should - Correct
answercheck critical items such as the tires, brakes, and cargo tie-downs.
High beams should be: - Correct answerUsed whenever it is safe and legal to do
so
The safety release valve is located on the Air tanks and is used by? - Correct
answerSelf-operated when the air pressure is above 150 PSI
Which of these is a proper use of vehicle lights and flashers? - Correct
answerWarn following drivers by flashing your brake lights, don't stop suddenly. If
you see a hazard that will require slowing down, warn the drivers behind by flashing
your brake lights. At dawn, dusk, in rain, or snow, you need to make yourself easier to
see so turn on your lights.
Which of the following is a key steering component? - Correct answerGear box
How can you start moving without rolling backward? - Correct answerDon't roll
back when you start. You may hit someone behind you. If you have a manual
transmission vehicle, partly engage the clutch before you take your right foot off the
brake. Put on the parking brake whenever necessary to keep from rolling back. Release
the parking brake only when you have applied enough engine power to keep from
rolling back.
Which is NOT one of the four basic skills that operating a commercial motor vehicle
requires? - Correct answerFirst-aid certification
What is the average reaction distance? - Correct answer61 feet
The most common cause of serious vehicle skids is: - Correct answerDriving too
fast for road conditions
, The distance that you should look ahead of your vehicle while driving amounts to about
_____ at highway speed. - Correct answer1/4 mile
You must park on the side of a level, straight, two lane road. Where should you place
the three reflective triangles? - Correct answerOne within 10 feet of the rear of
the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the
vehicle
If you are convicted for driving under the influence while driving a commercial vehicle,
and this is your first offense, you will most likely get: - Correct answerAt least a
one-year suspension of your CDL
Front end header boards: - Correct answerProtect you from your cargo in case of
collision and block the forward movement of your cargo
The formula for stopping distance with air brakes is? - Correct answerPerception
Distance + Reaction Distance + Brake Lag Distance + Braking Distance = Total
Stopping Distance.
Which of these statements about driving in areas with strong winds is true? - Correct
answerStrong winds make it difficult to stay in your lane. The problem is usually
worse for lighter vehicles. This problem can be especially bad coming out of tunnels.
Which of these statements about crossing or entering traffic with a heavy vehicle is
true? - Correct answerHeavy vehicles need larger gaps in traffic than cars
If a vehicle continues to drive in your blind spot you should? - Correct
answerBack off
You are driving a 40-foot vehicle at 45 mph. Driving conditions are ideal. What is the
least amount of space that you should keep in front of your vehicle to be safe? -
Correct answer5 seconds
Axle weight means the following? - Correct answerThe weight transmitted to the
ground by one axle or one set of axles
The new BAC or blood alcohol concentration for commercial drivers to be considered
intoxicated when driving a commercial vehicle is: - Correct answer0
(cristcdl.com)Questions and Correct
Answers (Latest Update 2025-2026)
Assured Success
Whenever you stop for a break during your trip, you should - Correct
answercheck critical items such as the tires, brakes, and cargo tie-downs.
High beams should be: - Correct answerUsed whenever it is safe and legal to do
so
The safety release valve is located on the Air tanks and is used by? - Correct
answerSelf-operated when the air pressure is above 150 PSI
Which of these is a proper use of vehicle lights and flashers? - Correct
answerWarn following drivers by flashing your brake lights, don't stop suddenly. If
you see a hazard that will require slowing down, warn the drivers behind by flashing
your brake lights. At dawn, dusk, in rain, or snow, you need to make yourself easier to
see so turn on your lights.
Which of the following is a key steering component? - Correct answerGear box
How can you start moving without rolling backward? - Correct answerDon't roll
back when you start. You may hit someone behind you. If you have a manual
transmission vehicle, partly engage the clutch before you take your right foot off the
brake. Put on the parking brake whenever necessary to keep from rolling back. Release
the parking brake only when you have applied enough engine power to keep from
rolling back.
Which is NOT one of the four basic skills that operating a commercial motor vehicle
requires? - Correct answerFirst-aid certification
What is the average reaction distance? - Correct answer61 feet
The most common cause of serious vehicle skids is: - Correct answerDriving too
fast for road conditions
, The distance that you should look ahead of your vehicle while driving amounts to about
_____ at highway speed. - Correct answer1/4 mile
You must park on the side of a level, straight, two lane road. Where should you place
the three reflective triangles? - Correct answerOne within 10 feet of the rear of
the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the
vehicle
If you are convicted for driving under the influence while driving a commercial vehicle,
and this is your first offense, you will most likely get: - Correct answerAt least a
one-year suspension of your CDL
Front end header boards: - Correct answerProtect you from your cargo in case of
collision and block the forward movement of your cargo
The formula for stopping distance with air brakes is? - Correct answerPerception
Distance + Reaction Distance + Brake Lag Distance + Braking Distance = Total
Stopping Distance.
Which of these statements about driving in areas with strong winds is true? - Correct
answerStrong winds make it difficult to stay in your lane. The problem is usually
worse for lighter vehicles. This problem can be especially bad coming out of tunnels.
Which of these statements about crossing or entering traffic with a heavy vehicle is
true? - Correct answerHeavy vehicles need larger gaps in traffic than cars
If a vehicle continues to drive in your blind spot you should? - Correct
answerBack off
You are driving a 40-foot vehicle at 45 mph. Driving conditions are ideal. What is the
least amount of space that you should keep in front of your vehicle to be safe? -
Correct answer5 seconds
Axle weight means the following? - Correct answerThe weight transmitted to the
ground by one axle or one set of axles
The new BAC or blood alcohol concentration for commercial drivers to be considered
intoxicated when driving a commercial vehicle is: - Correct answer0
